The WISL exists alongside the Evergreen Premier League (EPLWA), Washington’s outdoor summer league. A look at the rosters below with reveal that some players share their talents in both leagues. Sometimes for the same club, sometimes not.

The WISL has 4 clubs that are also in the EPLWA: Bellingham United, Olympic Force and Oly Town Artesians (new to the EPLWA in 2017.) The Tacoma Stars Reserves are operated by the outdoor South Sound FC.